[DeTomaso] !7" wheels on stock body Pantera

Thu Oct 14 15:30:52 EDT 2010

The internal width was .5" narrower then the outside width   including the
lip .25" lip on each side. My wheels did not have an "advertised size
(width) because they were custom made. I ordered wheels that were 9" wide an
they measure 9" in width internally (where the tire fits) but 9.5" if
measured externally outside edge to outside edge ( same thing with the rear
wheels) 12" internally but 12.5 outside edge. This did not present a problem
because the tires (235/40R/18) at the widest point are 9.57" ( approved rim
width's according to Nitto)  8.00" (8.50') 9.50") Rear 335/30ZR19are 13.31"
with an approved rim size's of  11.50" (12.00") 12.50" My wheels have a
reversed lip so they look flatter on the outside rim edge ( this may explain
the difference between the actual internal width and external width
measurements)

Boyd

On Thu, Oct 14, 2010 at 2:16 PM, Tomas Gunnarsson <guson at home.se> wrote:

> I've never come across a wheel that was off the advertised width by as much
> as .5". Are you measuring the width inside the rim edges?
>
> Tomas
>
> -----Original Message-----
> From: detomaso-bounces at realbig.com
> [mailto:detomaso-bounces at realbig.com]On Behalf Of boyd casey
> Sent: den 14 oktober 2010 16:27
> To: Asa Jay Laughton
> Cc: detomaso at realbig.com
> Subject: Re: [DeTomaso] !7" wheels on stock body Pantera
>
>
> A rim that is quoted as 9" wide is really 9.5. The tire width is even
> wider.
> For instance my rear  rims are 19" X12" the actual width is 12.5" and the
> width of the tire ( which is a whole other story) is 13.31". I have Nitto
> Nt-05's and my front tires are 235/40zr/18 which are actually 9.57"wide.
> The
> tire Mfg will tell you the rim size (minimum, optimal, and maximum width )
> that can be used for a particular size tire. On a narrow body car (like
> mine) I believe you will be unable to use a front tire that is 275/40/17 ,
> if that were a nitto NT-o5 (I am using their size table) it would have an
> outside diameter of 25.59" and a width of 10.79, That is a bigger tire in
> both diameter and width then my 235/40/18 which has an outside diameter of
> 25.43" and a width of 9.57". I had numerous contact problems. I had to
> increase my caster by modifying my upper A-arms ( which brought my wheel
> toward the back of the car) I had to roll my fender lips and I still had
> contact problems at full lock with the windshield wiper motor cover ( which
> I had to modify) This is with a tire that is only 9.57"wide Yours would be
> more then  an inch wider at 10.57". Personally I don't think it's going to
> work out . Check the tire manufacturers specs for rim vs tire sizes so you
> will know what size rims you can use with your tires. I think you would be
> better off selling you front tires and going with a a different size like a
> 225/40/17 or 235/40 /17  .When I replace my front tires I am going to down
> size to 225/40/18 which is also a smaller over all diameter (25.08" 9.06"
> width) which will give me more of a down ward rake or slope which is
> supposed to reduce high speed lift in the front of the car, and should
> eliminate all my contact problems.
>
> Boyd
>
> On Thu, Oct 14, 2010 at 9:51 AM, Asa Jay Laughton <asajay at asajay.com>
> wrote:
>
> >  I know of people who have gone so far as 9" on front and 11" on rear.
> > When I was trying to measure my stock body L model, that's about the max
> > I figure she could take.
> >
> > Asa Jay
> >
> > Asa Jay Laughton, MSgt, USAFR, Retired
> > &  Shelley Marie
> > Spokane, WA
> > ******************************
> > http://www.racingagainstautism.com
> > http://www.teampanteraracing.com
> >
> >
> > On 10/13/2010 22:19, burrid1 at netzero.net wrote:
> > > Wow! My sincere thanks for the advice and information, with a special
> > thanks to Boyd, Ken, and Michael, as they really went above and beyond. I
> > currently have a set of 275/40/17&  335/35/17 tires. Ideally I would like
> to
> > have a wheel allowing maximum exposure for the braking system (I like
> > Campi's, but it looks like it's not going to happen this time). Is it
> > possible to get 10" (min. 9") rims on the front and 12" (min. 11") on the
> > rear? Do you know of anyone who has installed 11"&  13" on their stock
> body
> > Pantera?
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